CN102069380B - Small-diameter step deep hole processing technology of shaft part and technological device - Google Patents
Small-diameter step deep hole processing technology of shaft part and technological device Download PDFInfo
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- CN102069380B CN102069380B CN201010608367A CN201010608367A CN102069380B CN 102069380 B CN102069380 B CN 102069380B CN 201010608367 A CN201010608367 A CN 201010608367A CN 201010608367 A CN201010608367 A CN 201010608367A CN 102069380 B CN102069380 B CN 102069380B
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- reaming
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- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000005553 drilling Methods 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention relates to a small-diameter step deep hole processing technology of a shaft part and a technological device, which belongs to the technical field of machinery manufacture. A chambering boring cutter is arranged on a substrate, and an excircle of the substrate of the chambering boring cutter is provided with a bearing key; a blind hole boring cutter is arranged at the front end of a blind hole boring head, and the blind hole boring cutter is in an L-shaped structure; a rolling cutter consists of a substrate and a tumbling pillar, and the substrate comprises a cutter shaft and an adjustable technological device; and the chambering boring cutter, the blind hole boring cutter and the rolling cutter are all connected with an ordinary boring rod through thread pairs. The cutters can complete the small-diameter step deep hole processing of the shaft part through the processing steps of drilling a large-hole end, drilling a small-hole end, finely boring a small end hole, half finely boring a large end hole, counterboring a step, finely boring the large hole end, rolling the large hole end, detecting and warehousing. The special cutters simplifies the mechanical processing technology of the shaft part, and masterly solves the problems of easy eccentricity of deep drilling, size off-tolerance of the step in a hole, poor aperture surface quality and the like.
Description
Technical field
The invention belongs to machinery manufacturing technology field, relate to the Machining Technology of axial workpiece.
Background technology
At present, require so high minor diameter step deep hole for surface quality and transition shoulder, traditional processing technology is made up of following process: the first step: the depth drill through hole is used at the axis of workpiece center; Second step: elongated bore hole to small end hole pattern paper requirement; The 3rd step: the big stomidium of counterboring; The 4th step: the big stomidium of heavy boring; The 5th step: step dimension is to drawing requirement in the bore hole; The 6th step: the big stomidium of right boring is to drawing requirement; The 7th step: hold the endoporus polishing greatly.
The shortcoming of conventional tool and technology is:
(1), with deep hole drill once hole (diameter < φ 55mm) drill through, aspect ratio is bigger, causes hole off-centre to cause workpiece to be scrapped too greatly easily;
(2), the cutting edge of the reaming bit that uses of tradition is evenly to distribute at radial direction, radial direction side cutting edge limit and axis of workpiece the most is not parallel, and original reaming bit does not support key; When the counterboring macropore, because middle aperture processes, the cutting edge of bit central position just can not participated in working angles, makes drill bit be in free state, that is to say that drill bit can't locate in the center, instability, and the easy sideslip of drill bit causes workpiece to be scrapped;
(3), original boring cutter is " one " font; And the cutter installing hole of common boring head is big apart from body size foremost; Back hole boring cutter cutting edge and boring head matrix front end are installed has the distance of 25mm approximately, when the big stomidium of boring, when tool matrix has been run into the aperture end face; Cutting edge also not bore hole to the degree of depth that requires, so the interior step dimension in hole can't guarantee;
(4), to improve the fineness of workpiece endoporus, adopt traditional sand paper polishing, do not reach drawing requirement, the surface quality qualification rate of endoporus is very low; If adopt traditional rolling tool, roller foremost apart from the milled head matrix 40mm distance of having an appointment, when the milled head matrix had pushed up the aperture end face, roller did not also reach the degree of depth of internal rolling, so the local fineness in hole does not reach requirement.
Summary of the invention
In order to overcome the prior art deficiency; The present invention provides a kind of axial workpiece minor diameter step deep hole machining technology and technological equipment, and drilling deep hole is prone to problems such as step dimension is overproof in off-centre, the hole, hole surface is of poor quality, product percent of pass is low in process to solve.
It is to have improved reaming boring cutter, blind hole boring cutter and rolling tool that the present invention solves its technical problem, forms new processing technology.
Broad is that the reaming boring cutter is set on matrix, and the outside of reaming boring cutter is circular, and reaming boring cutter cylindrical and front end angle are pressed endoporus step dimension sharpening, and the reaming boring cutter is installed on the blind hole boring head.The reaming boring cutter is compared with original cutter, reduces cutter intermediate cut sword, and the supporting key is set on the matrix cylindrical, and supporting key material is a carbide alloy, has so just improved the wearability of cutter, in order to avoid excessive tool wear influences the crudy in hole.
The blind hole boring cutter is arranged on the front end of blind hole boring head, and the blind hole boring cutter is " L " shape structure, and blind hole boring head rear end connects boring bar.The blind hole boring cutter is compared with original through hole boring head; The position of carbide cutting sword changes to some extent on the cutter; Become " L " type to distribute with cutter hub, the cutter installing hole is also more near the front end of boring head, " L " cutter is installed after; Guarantee cutting edge surpass with boring head foremost, bore hole during up to end boring head and aperture step do not bump.
Rolling tool is made up of roller, retainer, adjusting device, connection footstalk, and adjusting device can realize that the roll extrusion diameter can regulate in ± 0.2mm scope; Rolling tool is compared with original milled head, and roller is positioned at milled head foremost, guarantees that the tumbling work of roller is in foremost all the time, and rolling tool and aperture step do not bump when being rolled into end.
Adopt above-mentioned cutter can accomplish axial workpiece minor diameter step deep hole machining, concrete processing step is following:
1, big nose end boring: workpiece is fixed on the lathe, selects drilling tool for use, be drilled into the degree of depth of drawing requirement according to drawing requirement;
2, small bore end boring: on lathe, workpiece is turned around, select drilling tool for use, be drilled into nose end greatly and communicate according to drawing requirement;
3, the little stomidium of right boring: select common borer for use, the right boring hole is to drawing requirement;
4, the big stomidium of half right boring: on lathe, once more workpiece is turned around, select common borer for use, half right boring hole is to drawing requirement;
5, counterboring step: according to drawing requirement, adjustment reaming boring cutter, the reaming boring cutter stretches into from big nose end, and the counterboring step is to drawing requirement; Reaming adds man-hour tool feeding amount and should in 0.2 ~ 0.5mm/ changes scope, select for use according to actual conditions;
6, the big nose end of right boring: according to drawing requirement, adjustment blind hole boring cutter, the blind hole boring cutter stretches into from big nose end, the big nose end of right boring, the size behind the through hole guarantees within milled head diameter ± 0.2mm adjusting range;
7, the big nose end of roll extrusion: according to drawing requirement, the adjustment rolling tool, the size of roll extrusion to drawing requirement and surface quality obtain said product; Rolling speed is controlled in 100 ~ 130m/min scope during roll extrusion, and the amount of feeding can reach 0.6 ~ 0.8mm/ to be changeed, and can guarantee the surface quality of endoporus like this;
8, check warehouse-in: product inspection, packing warehouse-in.
Adopting good effect of the present invention is through being provided with dedicated tool, having simplified the mechanical processing technique of axial workpiece, having solved drilling deep hole cleverly and be prone to problems such as step dimension is overproof in off-centre, the hole, aperture surface is of poor quality.Thereby reduced cost, improved efficient, promoted product quality and competitiveness.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Accompanying drawing 1 is reaming boring cutter structural representation;
Accompanying drawing 2 is a blind hole boring cutter structural representation;
Accompanying drawing 3 is the rolling tool structural representation.
1-1 reaming boring cutter, 1-2 matrix, 1-3 support key among Fig. 1.
2-1 blind hole boring cutter, 2-2 blind hole boring head among Fig. 2.
3-1 roller, 3-2 retainer, 3-3 adjusting device, 3-4 connect footstalk among Fig. 3.
The specific embodiment
Shown in Fig. 1-3: said solid shafting outside diameter is φ 320mm; Length overall is 1750mm, be at stepped hole of the axis centre position of axle processing, and an end is φ 125mm hole depth 1420mm; The other end is a φ 55mm aperture; The step at the place of communicating, two holes has the gradient of knuckle R5 and 15 °, and the diameter difference of two stomidiums is apart from bigger, and bore area has higher fineness to require Rz1.6.Realize that technical scheme of the present invention is to have improved reaming boring cutter, blind hole boring cutter and rolling tool, forms new processing technology.The reaming boring cutter is that reaming boring cutter 1-1 is set on matrix 1-2, and the outside of reaming boring cutter 1-1 is circular, and reaming boring cutter 1-1 cylindrical and front end angle are pressed endoporus step dimension sharpening, and reaming boring cutter 1-1 is installed on the blind hole boring head.The reaming boring cutter is compared with original cutter, reduces cutter intermediate cut sword, and scarfweld has increased supporting key 1-3 on the matrix cylindrical, and supporting key 1-3 material is a carbide alloy, has so just improved the wearability of cutter, in order to avoid excessive tool wear influences the crudy in hole.The blind hole boring cutter is arranged on the front end of blind hole boring head 2-2, and blind hole boring cutter 2-1 is " L " shape structure, and blind hole boring head 2-2 rear end connects boring bar.The blind hole boring cutter is compared with original through hole boring head; The position of carbide cutting sword changes to some extent on the cutter; Become " L " type to distribute with cutter hub, the cutter installing hole is also more near the front end of boring head, " L " cutter is installed after; Guarantee cutting edge surpass with boring head foremost, bore hole during up to end boring head and aperture step do not bump.Rolling tool by roller 3-1, retainer 3-2, adjusting device 3-3, connect footstalk 3-4 and form, adjusting device 3-3 can realize that the roll extrusion diameter can regulate in ± 0.2mm scope; Rolling tool is compared with original milled head, and roller 3-1 is positioned at rolling tool foremost, guarantees that the tumbling work of roller 3-1 is in foremost all the time, and rolling tool and aperture step do not bump when being rolled into end.
Adopt above-mentioned cutter can accomplish axial workpiece minor diameter step deep hole machining, concrete processing step is following:
1, big nose end boring: workpiece is fixed on the lathe, selects drilling tool for use, be drilled into the degree of depth of drawing requirement according to drawing requirement;
2, small bore end boring: on lathe, workpiece is turned around, select drilling tool for use, be drilled into nose end greatly and communicate according to drawing requirement;
3, the little stomidium of right boring: select common borer for use, the right boring hole is to drawing requirement;
4, the big stomidium of half right boring: on lathe, once more workpiece is turned around, select common borer for use, half right boring hole is to drawing requirement;
5, counterboring step: according to drawing requirement, adjustment reaming boring cutter, the reaming boring cutter stretches into from big nose end, and the counterboring step is to drawing requirement; Reaming adds man-hour tool feeding amount and should in 0.2 ~ 0.5mm/ changes scope, select for use according to actual conditions;
6, the big nose end of right boring: according to drawing requirement, adjustment blind hole boring cutter, the blind hole boring cutter stretches into from big nose end, the big nose end of right boring, the size behind the through hole guarantees within milled head diameter ± 0.2mm adjusting range;
7, the big nose end of roll extrusion: according to drawing requirement, the adjustment rolling tool, the size of roll extrusion to drawing requirement and surface quality obtain said product; Rolling speed is controlled in 100 ~ 130m/min scope during roll extrusion, and the amount of feeding can reach 0.6 ~ 0.8mm/ to be changeed, and can guarantee the surface quality of endoporus like this;
8, check warehouse-in: product inspection, packing warehouse-in.
Claims (4)
1. an axial workpiece minor diameter step deep hole machining technological equipment mainly is made up of reaming boring cutter, blind hole boring cutter and rolling tool; It is characterized in that the reaming boring cutter is that the reaming boring cutter is set on matrix, the outside of reaming boring cutter is circular, and reaming boring cutter cylindrical and front end angle are pressed endoporus step dimension sharpening; On reaming boring cutter matrix cylindrical, the supporting key is set; The blind hole boring cutter is arranged on the front end of blind hole boring head, and the blind hole boring cutter is " L " shape structure, and the carbide cutting sword becomes " L " type to distribute on the blind hole boring cutter with cutter hub, and the cutter installing hole is arranged at the front end of boring head; Rolling tool is made up of roller, retainer, adjusting device, connection footstalk, and adjusting device can realize that the roll extrusion diameter can regulate in ± 0.2mm scope; Rolling tool is compared with original milled head, and roller is positioned at milled head foremost, guarantees that the tumbling work of roller is in foremost all the time, and rolling tool and aperture step do not bump when being rolled into end.
2. according to the said axial workpiece minor diameter of claim 1 step deep hole machining technological equipment, it is characterized in that the reaming boring cutter is installed on the matrix.
3. according to the said axial workpiece minor diameter of claim 1 step deep hole machining technological equipment, it is characterized in that blind hole boring head rear end connects boring bar.
4. one kind is adopted claim 1 technological equipment working shaft-like part minor diameter step deep hole machining technology, it is characterized in that concrete processing technology step is following:
(1) big nose end boring: workpiece is fixed on the lathe, selects drilling tool for use, be drilled into the degree of depth of drawing requirement according to drawing requirement;
(2) small bore end boring: on lathe, workpiece is turned around, select drilling tool for use, be drilled into nose end greatly and communicate according to drawing requirement;
(3) the little stomidium of right boring: select common borer for use, the right boring hole is to drawing requirement;
The big stomidium of (4) half right borings: on lathe, once more workpiece is turned around, select common borer for use, half right boring hole is to drawing requirement;
(5) counterboring step: according to drawing requirement, adjust above-mentioned reaming boring cutter, the reaming boring cutter stretches into from big nose end, and the counterboring step is to drawing requirement; Reaming adds man-hour tool feeding amount and should in 0.2 ~ 0.5mm/ changes scope, select for use according to actual conditions;
(6) the big nose end of right boring: according to drawing requirement, adjust above-mentioned blind hole boring cutter, the blind hole boring cutter stretches into from big nose end, the big nose end of right boring, and the size behind the through hole guarantees within milled head diameter ± 0.2mm adjusting range;
(7) the big nose end of roll extrusion: according to drawing requirement, adjust above-mentioned rolling tool, the size of roll extrusion to drawing requirement and surface quality obtain said product; Rolling speed is controlled in 100 ~ 130m/min scope during roll extrusion, and the amount of feeding reaches 0.6 ~ 0.8mm/ to be changeed, and can guarantee the surface quality of endoporus like this;
(8) check warehouse-in: product inspection, packing warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608367A CN102069380B (en) | 2010-12-28 | 2010-12-28 | Small-diameter step deep hole processing technology of shaft part and technological device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608367A CN102069380B (en) | 2010-12-28 | 2010-12-28 | Small-diameter step deep hole processing technology of shaft part and technological device |
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| Publication Number | Publication Date |
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| CN102069380A CN102069380A (en) | 2011-05-25 |
| CN102069380B true CN102069380B (en) | 2012-09-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102267037A (en) * | 2011-07-13 | 2011-12-07 | 上海洛克磁业有限公司 | Machining process for machining inner hole on hard and brittle material |
| CN102407423B (en) * | 2011-09-28 | 2013-12-04 | 于邦仲 | Method for machining valve seat of respiratory flow and rhythm control air valve |
| CN103433703A (en) * | 2013-08-16 | 2013-12-11 | 江苏森威精锻有限公司 | Machining process of long hollow shaft |
| CN110560753A (en) * | 2019-09-09 | 2019-12-13 | 常州机电职业技术学院 | Drilling and rolling combined forming cutter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU529908A1 (en) * | 1974-05-31 | 1976-09-30 | Волгоградский Политехнический Институт | Boring Bar |
| US4184794A (en) * | 1977-04-09 | 1980-01-22 | Ferdinand Henninghaus | Device for machining the internal wall of a cylinder |
| SU874271A1 (en) * | 1979-04-13 | 1981-10-23 | Научно-производственное объединение по технологии машиностроения ЦНИИТМАШ | Tool for working deep holes |
| SU988462A2 (en) * | 1981-06-22 | 1983-01-15 | Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт Подшипниковой Промышленности | Apparatus for boring |
| CN2134904Y (en) * | 1991-01-29 | 1993-06-02 | 梁桂平 | Adjustable floating rolling tool |
| DE19919559A1 (en) * | 1999-04-29 | 2000-11-09 | Federal Mogul Nuernberg Gmbh | Combination tool and method for producing a drilled hole with a profile section varying partly from a cylindrical shape includes a fine boring tool for processing drilled hole sections and a tool for conical or crowned borings. |
| CN2489902Y (en) * | 2001-07-03 | 2002-05-08 | 王峻 | Internal metal removal single-edge deep-hole boring head |
| CN201253690Y (en) * | 2008-09-20 | 2009-06-10 | 徐州压力机械有限公司 | Deep blind hole boring head apparatus |
| CN201596786U (en) * | 2010-01-11 | 2010-10-06 | 郑州市钻石精密制造有限公司 | Boring blade for processing cylinder cover end surfaces |
-
2010
- 2010-12-28 CN CN201010608367A patent/CN102069380B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU529908A1 (en) * | 1974-05-31 | 1976-09-30 | Волгоградский Политехнический Институт | Boring Bar |
| US4184794A (en) * | 1977-04-09 | 1980-01-22 | Ferdinand Henninghaus | Device for machining the internal wall of a cylinder |
| SU874271A1 (en) * | 1979-04-13 | 1981-10-23 | Научно-производственное объединение по технологии машиностроения ЦНИИТМАШ | Tool for working deep holes |
| SU988462A2 (en) * | 1981-06-22 | 1983-01-15 | Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт Подшипниковой Промышленности | Apparatus for boring |
| CN2134904Y (en) * | 1991-01-29 | 1993-06-02 | 梁桂平 | Adjustable floating rolling tool |
| DE19919559A1 (en) * | 1999-04-29 | 2000-11-09 | Federal Mogul Nuernberg Gmbh | Combination tool and method for producing a drilled hole with a profile section varying partly from a cylindrical shape includes a fine boring tool for processing drilled hole sections and a tool for conical or crowned borings. |
| CN2489902Y (en) * | 2001-07-03 | 2002-05-08 | 王峻 | Internal metal removal single-edge deep-hole boring head |
| CN201253690Y (en) * | 2008-09-20 | 2009-06-10 | 徐州压力机械有限公司 | Deep blind hole boring head apparatus |
| CN201596786U (en) * | 2010-01-11 | 2010-10-06 | 郑州市钻石精密制造有限公司 | Boring blade for processing cylinder cover end surfaces |
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| CN102069380A (en) | 2011-05-25 |
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Denomination of invention: Small-diameter step deep hole processing technology of shaft part and technological device Effective date of registration: 20190227 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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Date of cancellation: 20210304 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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Denomination of invention: Processing technology and equipment of small diameter step deep hole for shaft parts Effective date of registration: 20210304 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
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Date of cancellation: 20230320 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
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Denomination of invention: Processing Technology and Equipment for Small Diameter Step Deep Holes in Shaft Parts Effective date of registration: 20230323 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980035948 |
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